3 resultados para Urban environmental problems

em Repositorio Académico de la Universidad Nacional de Costa Rica


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This article describes a teaching experience developed in Environmental Education in a Costa Rican rural school with students from ninth year, characterized by the dynamics of a workshop in which stresses the participation in the construction of initiatives to address environmental problems detected by the youth in their communities. The article aims to contribute to the construction of a pedagogical model of self-management training and education of young people in environmental sectors, tourism and agriculture, in the conviction that education constitutes a vital alternative for understanding and solving environmental problems.

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The dominant development system with its neoliberal policies and market-centered approaches contribute to aggravate the socio-environmental problems, under the context of the globalization of the market. For that reason, the concern about the sustainable development of the environment makes highly necessary the structuring of an environmental education that forms and informs about this problem. As a result, environmental education constitutes the educational process that deals with the relation between the human being and his/her environment (natural and man-made) and with itself, as well as the effects caused by this relation. In this way, environmental education must constitute an integral process, which plays its role throughout the whole teaching and learning intertwinement. For this reason it is necessary to establish an educational process that examines the relation of any topic or human being activity, within an analysis of the importance or incidence on social life, as it is the pedagogical part and its political essence.

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Los incendios forestales constituyen problemas que ocasionan grandes daños ambientales sobre los ecosistemas, uno de los mayores impactos en el ambiente son los efectos sobre el cambio climático, situación que acentúa los problemas globales que atentan la vida sobre el planeta. Notoriamente, se reconoce que los incendios son un agente constante de cambios sobre los paisajes naturales y por tanto su estudio reviste importancia, ya que afectan de una manera notable la vegetación, la fauna, el suelo y aumentan el peligro de desertificación, lo que conlleva a los problemas socioeconómicos. Este artículo tiene por objetivo determinar el riesgo ante incendios forestales en la cuenca del Río Tempisque en Costa Rica, a partir de variables explicativas como la proximidad a carreteras, tipos de usos de la tierra, focos de incendios, insolación y altitud sobre el nivel de mar, modeladas con técnicas de Evaluación Multicriterio (ECM) en un Sistema de Información Geográfica (SIG).Dado que el concepto riesgo se refiere a una condición de probabilidad, en este artículo se recrea escenarios en donde podría tener lugar el fuego, los cuales se correlacionan con eventos que se han presentando en años anteriores. Se debe advertir que no se considera la variable viento como factor dispersor del fuego, ya que el objetivo es determinar lugares con condición favorable a incendio sin mediar los factores que contribuyen en su distribución.Palabras claves: incendio forestal, problema ambiental, riesgo, modelaje, sistemas de información geográfica y evaluación multicriterio.AbstractForest fires are problems that cause environmental damage to ecosystems. One of the biggest impacts is on the atmosphere and their effects on climatic change, a situation that exacerbates globalproblems perpetrated on planet life. Historically, fires are recognized as a constant agent of change Julio César Moraga Peralta Evaluación del riesgo ante incendios forestalesen la cuenca del río Tempisque, Costa Rica on the natural landscape. Therefore, fire studies are important because of the significant effect of fire on vegetation, fauna and soils and the increased danger of desertification, leading to socioeconomicproblems.This article has as its objective to determine the risk before forest fires on the Tempisque RiverBasin in Costa Rica from explanatory variables such as proximity to roads, types of land uses, fireoutbreaks, isolation and altitude above sea level, using Multicriteria Evaluation (NDE) modeling techniques in a Geographic Information System.As the term risk refers to a condition of probability, this article recreates scenarios where a fire could occur, which correlate with events that have occurred in previous years. It should be noted that the variable of wind is not considered as a fire-scattering factor since the objective of this study is to identify places with conditions already favorable to fires without a contributing factor in their distribution.Key words: forest fire, environmental problems, risk, geographical information system, multicriteria evaluation modeling, Tempisque River Basin, Costa Rica